15990672 has 20 divisors (see below), whose sum is σ = 41309360. Its totient is φ = 5330208.

The previous prime is 15990649. The next prime is 15990679. The reversal of 15990672 is 27609951.

It is a super-3 number, since 3×15990672³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15990672.

It is not an unprimeable number, because it can be changed into a prime (15990679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166522 + ... + 166617.

It is an arithmetic number, because the mean of its divisors is an integer number (2065468).

Almost surely, 2^15990672 is an apocalyptic number.

15990672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15990672 is an abundant number, since it is smaller than the sum of its proper divisors (25318688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15990672 is a wasteful number, since it uses less digits than its factorization.

15990672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333150 (or 333144 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 15990672 is about 3998.8338300059. The cubic root of 15990672 is about 251.9352315281.

The spelling of 15990672 in words is "fifteen million, nine hundred ninety thousand, six hundred seventy-two".